Network Troubleshooting

  • Packet loss

    Voice and audio data travel in packets across the Internet. Packet loss occurs when one or more packets of data...
  • Jitter

    Jitter is the variation in the time between data packets arriving, caused by network congestion, or route changes. The longer...
  • Identifying SIP ALG

    SIP ALG (Application Layer Gateway) is a security component of most commercial routers. In addition to router firewalls, SIP ALG...
  • Nextiva Compatible Routers

    Most routers work with Nextiva’s network after entering the Nextiva firewall rules, while some routers require further configuration. Nextiva’s Amazing...
  • Supported codec

    Many times, when setting up a SIP device or a computer or mobile application, you will be asked for a...
  • Tomato Firmware QoS Setup

    QoS (Qualty of Service) Configuration   Initial Preparation In order to set up wireless access on a Tomato router, you...
  • Troubleshooting Dropped Calls

    Customers who are experiencing dropped calls can also see symptoms that may include fast busy signals, dead air, and choppy...
  • Computer traffic

    Computer traffic is the total volume of cells, blocks, frames, packets, calls, messages, or other units of data carried over...
  • Double NAT

    If experiencing one-way audio, periodic phone deregistration, unsuccessful call transfers, error messages on outbound dials, Call Groups not functioning as...
  • Bandwidth

    In short, bandwidth refers to your network’s capacity to handle Internet traffic. Bandwidth describes the maximum data transfer rate of a network or Internet connection....
  • Latency

    Latency is the amount of time it takes a packet of data to move across a network connection. When a...
  • Buzzing on the line

    There are a variety of reasons users hear buzzing on VoIP calls. Commonly referred to as static or crackling on...
  • Background noise on the line

    There are a variety of reasons that background noise happens on VoIP calls. Common symptoms include unexplained background noise, echoing,...
  • Call Group not working

    Choose the image that looks most like your screen once logged in. olderversion There are a variety of reasons that...
  • No dial tone

    There are a variety of reasons for the absence of a dial tone, usually network or hardware related. It is...